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SCUBA observations of NGC 6946 [Letter]

Bianchi, S., Davies, Jonathan Ivor, Alton, P. B., Gerin, M. and Casoli, F. 2000. SCUBA observations of NGC 6946 [Letter]. Astronomy & Astrophysics 353 (2) , L13-L17.

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Abstract

We present sub-millimetre images of the spiral galaxy NGC 6946 at 450 and 850 mu m. The observations have been carried out using the scan/map imaging mode of the Sub-millimetre Common User Bolometer Array (SCUBA) at the James Clark Maxwell Telescope (JCMT). The comparison with a (12)CO(2-1) line emission map from IRAM and with an U-band image, clearly shows that the 850 mu m emission is associated with molecular gas and bright star-forming regions, tracing the spiral arms. We place an upper limit of 0.7 for the V-band optical depth of dust associated with a diffuse atomic component. Based on observations at the James Clerk Maxwell Telescope. JCMT is operated by The Joint Astronomy Centre on behalf of the Particle Physics and Astronomy Research Council of the United Kingdom, the Netherlands Organisation for Scientific Research, and the National Research Council of Canada.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: ISM: dust, extinction – galaxies: individual: NGC 6946 – galaxies: spiral – galaxies: star clusters – galaxies: structure
Additional Information: Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0004-6361/ (accessed 16/04/2014)
Publisher: EDP Sciences
ISSN: 1432-0746
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 04:24
URI: http://orca.cf.ac.uk/id/eprint/38209

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